Ru-Catalysed CH Arylation of Indoles and Pyrroles with Boronic Acids: Scope and Mechanistic Studies
作者:Carina Sollert、Karthik Devaraj、Andreas Orthaber、Paul J. Gates、Lukasz T. Pilarski
DOI:10.1002/chem.201405931
日期:2015.3.27
The Ru‐catalysed C2Harylation of indoles and pyrroles by using boronicacids under oxidative conditions is reported. This reaction can be applied to tryptophan derivatives and tolerates a wide range of functional groups on both coupling partners, including bromides and iodides, which can be further derivatised selectively. New indole‐based ruthenacyclic complexes are described and investigated as
Rhodium(III)-Catalyzed Enantioselective Coupling of Indoles and 7-Azabenzonorbornadienes by C−H Activation/Desymmetrization
作者:Xifa Yang、Guangfan Zheng、Xingwei Li
DOI:10.1002/anie.201811998
日期:2019.1.2
Chiral rhodium(III) cyclopentadienyl catalysts (CpXRhIII) play significant roles in asymmetric arene C−Hactivation. Rh/Ir‐catalyzed couplings of arenes and strained rings have been well‐studied, but they have been limited to racemic systems. Reported in this work is the CpxRhIII/AgSbF6‐catalyzed enantioselective desymmetrizative C−C coupling of N‐pyrimidylindoles and 7‐azabenzonorbornadienes with
手性铑(III)环戊二烯基催化剂(Cp X Rh III)在不对称芳烃CH活化中起重要作用。芳烃和应变环的Rh / Ir催化偶联已得到了很好的研究,但仅限于外消旋体系。这项工作报告的是Cp x Rh III / AgSbF 6催化的N-嘧啶吲哚和7-氮杂苯并降冰片二烯的对映选择性脱对称CC偶联,具有较高的效率和对映选择性。AgSbF 6的作用已经通过机理研究确定。AgSbF 6 通过抑制吲哚的C3-H活化来增强催化活性,否则该活化将导致催化不活泼的物种。
Rhodium-Catalyzed Intermolecular Stereoselective Allylation of Indoles with Allenes
作者:Chaoyan Ma、Can Li、Jiahui Bai、Junzhe Xiao、Yizhan Zhai、Yinlong Guo、Shengming Ma
DOI:10.1021/acscatal.2c01433
日期:2022.8.19
rhodium-catalyzed C–H functionalization-based intermolecular allylation of indoles with trisubstituted allenes has been developed. This synthetic process proceeds with an excellent regioselectivity, Z-selectivity, high efficiency of chirality transfer, and a wide tolerance of reactive functional groups under mild conditions. Late-stage modification on a series of complex bioactive or drug molecules and